/**
 * Copyright (c) 2011, OPOWER.com
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met: 1) Redistributions of source code must retain the above
 * copyright notice, this list of conditions and the following disclaimer.
 * 2) Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following
 * disclaimer in the documentation and/or other materials provided
 * with the distribution. 3) Neither the name of the OPOWER.com nor
 * the names of its contributors may be used to endorse or promote
 * products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.opower.connectionpool;

// logging
import org.apache.log4j.Logger;

/**
 * Factory of connection pools. This factory isolates interface
 * and implementation of {@link ConnectionPool}.
 *
 * @author Yegor Bugayenko (yegor@tpc2.com)
 * @version $Id: PoolFactory.java 5 2011-04-23 15:52:41Z yegor256@gmail.com $
 */
public final class PoolFactory {

    /**
     * Logger.
     */
    private static final Logger LOGGER = Logger.getLogger(PoolFactory.class);

    /**
     * Make new connection pool.
     *
     * <p>The method doesn't cache {@link ConnectionPool} instances,
     * as it should do in the future. In the meantime it just creates
     * a new {@link ConnectionPool} and returns to the caller.
     *
     * @param url JDBC URL of the driver end-point
     * @param user User name
     * @param password The password
     * @return a connection pool.
     * @see java.sql.DriverManager#getConnection(String,String,String)
     */
    public ConnectionPool getPool(final String url, final String user,
        final String password) {
        this.LOGGER.trace("#getPool(...)");
        final ConnectionPool pool = new SimplePool(url, user, password);
        this.LOGGER.info(
            "Connection pool instantiated: "
            + pool.getClass().getName()
        );
        return pool;
    }

}
